Watlow SCR Din-A-Mite Type B Power Controller
from Anderson-Bolds
For a Watlow Din-A-Mite Quote, Click HERE!
Watlow solid state power switching devices complement the rapid switching required by PID temperature controllers and help deliver optimum system performance and service life. They are available in 1-phase and 3-phase/2-leg and 3-leg configurations, feature touch-safe terminations, input indicators, zero-cross, random or phase-angle fire options, ratings from 18 to 1,000 amperes and agency approvals including CE and UL® 508. Various configurations offer short circuit current ratings (SCCR) of 200,000 amperes, extensive system and heater diagnostic capabilities, heater bake out, integrated heat sinks, on-board fuses, RoHS compliance and serial communications.
The Watlow DIN-A-MITE® B is a low-cost, highly compact and versatile solid state electric heat controller. The DIN-A-MITE B capabilities include single-phase and three-phase zero-cross switching up to 40 and 22 amperes, respectively at 600VAC (see rating curve). This electric heat controller's design includes proper heat sinking and terminations simplifying integration into applications. DIN-rail and back panel mounting is standard on this electric heat controller. The Watlow DIN-A-MITE controller is also mercury free.
Variable time base, 4-20mA process control or VAC/VDC input contactor versions are available. A shorted silicon controlled rectifier (SCR) alarm option is also available. All configurations are model number dependent and factory selectable. This power controller also includes 200KA short circuit current rating (SCCR) tested up to480VAC to prevent arch flash with required fusing.
Features include single-phase and three-phase zero cross switching up to 40 and 22 amperes, respectively, at 600VAC (see rating curve). A unique, integrated design removes the guesswork associated with selecting a proper heat sink and adequate terminations for the application.
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| Watlow Din-A-Mite B SCR Power Controller |
Features and Benefits
200KA SCCR with proper fusing • Minimizes damage in the event of a short circuit
DIN-Rail and panel mounting • Provides versatility and quick, low-cost installation
Compact size • Reduces panel space and cost
Touch-safe terminals • Increases safety for installer and user
Single and Three-Phase power • Permits use in a variety of applications
Mercury free • Assures environmental safety
Faster switching with solid state • Saves energy and extends heater life
UL® 508 listed, C-UL®, RoHS and CE with filter • Meets applications requiring agency approval • Reduces end product documentation cost
Back-to-Back SCR design • Ensures a rugged design
Shorted output alarm (optional) • Simplifies troubleshooting and reduces downtime
Specifications
Operator Interface • Control input and indication light • Alarm output and indication light
Amperage Rating • See the output rating curve below• Max. surge current for 16.6ms, 380A peak • Max. I2t for fusing is 4,000A2s • Latching current: 400mA max. • Holding current: 200mA max. • Off-state leakage 1mA at 77°F (25°C) max. • Power dissipation = 1.2 watts per ampere per leg switched • 200KA SCCR, Type 1 and 2 approved with the recommended fusing; see user manual
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| Watlow DIN-A-Mite B SCR Amperage (amps) Ratings |
Line Voltage • 24 to 660VAC model number dependent; see ordering information
Control Mode, Zero Cross • Control option C: VDC input, contactor output • Control option K: VAC input, contactor output • To increase service life on contactor models, the cycle time should be less than three seconds • Control option F: 4 to 20mA DC input, variable time-base control output
Control Input • AC contactor: 24VAC ±10%, 120VAC +10/-25%, 240VAC +10/-25% @ 25mA max. per controlled leg • DC contactor: 4.5 to 32VDC: max. current @ 4.5VDC is 6mA per leg. Add 2mA per LED used to the total current • Linear current: 4 to 20mA DC: loop-powered, control option F0 only (requires current source with 6.2VDC available, no more than three DIN-A-MITE inputs connected in series)
Alarm Shorted SCR Alarm Option • Alarm state when the input command signal off and a 10A or more load current is detected by the current transformer (two turns required for 5A and three turns for 2.5A) Alarm Output • Energizes on alarm, non-latching • Triac 24 to 240VAC, external supply with a current rating of 300mA @ 77°F (25°C), 200mA @ 122°F (50°C), 100mA @ 176°F (80°C) and a holding current of 200 µA with a latching current of 5mA typical
Agency Approvals • CE with proper filter: 204/108/EC Electromagnetic Compatibility Directive EN 61326-1: Industrial Immunity Class A Emissions 2006/95/EC Low Voltage Directive EN 50178 Safety Requirements Installation category III, pollution degree 2 • UL® 508 listed and C-UL® File E73741 • 2011/65/EU RoHS 2 Control Input Terminals • Compression: will accept 24 to 16 AWG (0.2 to 1.5 mm2) wire Line and Load Terminals • Compression: will accept 18 to 8 AWG (0.8 to 8.4 mm2) wire
Operating Environment • See the output rating curve • 0 to 90% RH (relative humidity), non-condensing • Storage temperature: -40 to 185°F (-40 to 85°C) • Operating temperature: -4 to 176°F (-20 to 80°C) • Insulation tested to 3,000 meters DIN-rail Mount • DIN EN 50022, 35 mm by 7.5 mm Back-Panel Mount • Four mounting holes No. 6 to No. 8 (M3 to M4) fastener Dimensions • 3.7 in. (94 mm) high x 3.3 in. (83 mm) wide x 4.9 in. (124 mm) deep • Weight: 1.5 lb (0.68kg)
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| SCR Controller from Watlow |
For a Watlow Din-A-Mite Quote, Click HERE!
Anderson-Bolds
www.anderson-bolds.com
